alexa Validity of the Community Balance and Mobility Scale in community-dwelling persons after stroke.
Physicaltherapy & Rehabilitation

Physicaltherapy & Rehabilitation

International Journal of Physical Medicine & Rehabilitation

Author(s): Knorr S, Brouwer B, Garland SJ

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Abstract OBJECTIVES: To examine the convergent validity, sensitivity to change, floor and ceiling effects of the Community Balance and Mobility Scale (CB&M) in community-dwelling stroke survivors. The secondary objective was to determine the correlations between the CB&M and lower-limb motor recovery and strength. DESIGN: Validity study. SETTING: Two university-based research centers. PARTICIPANTS: Community-dwelling persons after stroke (N=44; 24 men, 20 women; mean age, 62.6+/-12.6y). Baseline measures were taken 3 months after the onset of stroke (98.6+/-52.6d); participants were reassessed 8 months poststroke (246.8+/-57.2d). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: CB&M, Berg Balance Scale (BBS), Timed Up & Go (TUG), Chedoke McMaster Stroke Assessment (CMSA) Impairment Inventory for leg and foot, concentric bilateral isokinetic strength of the lower-limb flexor and extensor muscle groups using a dynamometer. The magnitude of the associations and the standardized response means (SRMs) among the CB&M, BBS, and TUG were used to examine the convergent validity and sensitivity to change, respectively. RESULTS: Moderate to high convergent validities (rho=.70 to .83, P<.001) were observed among the CB&M, BBS, and TUG. The CB&M was moderately correlated with the CMSA leg and foot scores (rho=.61 and .63, respectively, P<.001) and the paretic limb strength (rho=.67, P<.001). The CB&M demonstrated the greatest ability to detect change between the baseline and follow-up assessments (SRM=.83). CONCLUSIONS: The CB&M is valid and sensitive to change in assessing functional balance and mobility in ambulatory stroke survivors with moderate to mild neurologic impairments. Copyright 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. This article was published in Arch Phys Med Rehabil and referenced in International Journal of Physical Medicine & Rehabilitation

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